Patent US5477552A successfully refreshed from Google Patents.
Patent US3633228A successfully refreshed from Google Patents.
US3633228A
Expired / Lapsed
US
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Spring upholstery assembly
Assignee: FOAMCOIL SERVICES
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Filing: 1970-04-22
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Granted: 1972-01-11
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Expires: 1990-04-22
Abstract
Abstract A pocket spring upholstery assembly comprised of helical springs each encapsulated in a shell of flexible foam plastic and all mutually interconnected by an integral web of the same material. The web has a thickness less than the axial heights of the springs permitting independent movement between the springs under normal load.
Inventors
- 👤 Milton Zysman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:51
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/18; A47C7/20; A47C27/00; A47C27/04; A47C27/06; A47C27/063; A47C27/064; A47C27/14; A47C27/142; A47C27/144; A47C27/20; B; B68; B68G; B68G11/00; B68G11/04; B68G11/06
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
134 words
A spring upholstery assembly including: a plurality of helical upholstery springs respectively invested in a resilient elastomeric material and assembled in erect side-by-side spaced-apart relation with one another; a resilient web merging with the investment of said springs integrally interconnecting and holding them in said assembly, the web thickness being less than the axial heights of the springs whereby at least one end of each said spring projects through said web in detached relation to the ends of adjacent springs; said invested projecting spring ends being hollow over at least a part thereof; the resilience of said investment being insufficient to prevent compression of said projecting spring ends independently of one another under normal load but being sufficient nevertheless to restrict deflection thereof out of the erect side-by-side relation aforesaid under said normal load.
Claim 2
Dependent Claim
134 words
A spring upholstery assembly including: a plurality of helical upholstery springs respectively invested in a resilient elastomeric material and assembled in erect side-by-side spaced-apart relation with one another; a resilient web merging with the investment of said springs integrally interconnecting and holding them in said assembly, the web thickness being less than the axial heights of the springs whereby at least one end of each said spring projects through said web in detached relation to the ends of adjacent springs; said invested projecting spring ends being hollow over at least a part thereof; the resilience of said investment being insufficient to prevent compression of said projecting spring ends independently of one another under normal load but being sufficient nevertheless to restrict deflection thereof out of the erect side-by-side relation aforesaid under said normal load.
Claim 3
Dependent Claim
35 words
A spring upholstery assembly as claimed in claim 1 wherein: said investment encapsulates each respective spring in the form of a generally cylindrical hollow shell extending axiAlly of at least a part of said spring.
Claim 4
Dependent Claim
22 words
A spring upholstery assembly as claimed in claim 2 wherein: said investment extends over the complete axial dimension of each respective spring.
Claim 5
Dependent Claim
19 words
A spring upholstery assembly as claimed in claim 3 wherein: said web interconnects the said springs intermediate their ends.
Claim 6
Dependent Claim
44 words
A spring upholstery assembly as claimed in claim 1 wherein: said investment on each spring has an exterior configuration of generally barrel-shaped form tapering from the ends to a central zone thereof and said web interconnects said central zone, at least, of adjacent springs.
Claim 7
Dependent Claim
37 words
A spring upholstery assembly as claimed in claim 1 wherein: said web and investment are formed of a material having a resilience sufficient to modify the inherent characteristics of the springs during compressive movement thereof under load.
Claim 8
Dependent Claim
22 words
A spring upholstery assembly as claimed in claim 6 wherein: said material comprising said web and investment is a flexible foam plastic.
Claim 9
Dependent Claim
35 words
A spring upholstery assembly as claimed in claim 1 wherein: said web extends continuously through the said assembly of springs providing an opposed pair of hollow interior cavities at the respective ends of each spring.
Claim 10
Dependent Claim
36 words
A spring upholstery assembly as claimed in claim 1 wherein: the interior of each said spring is hollow over its full-axial height and said web interconnects the exterior surfaces of said investment on each said spring.
References Cited (Backward Citations)
US2882959A
Cited
US3145020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |